Engine Controls Schematics. Chevrolet Tahoe - 2WD 2004

GM Service Manual Online

For 1990-2009 cars

Makes 🢒 Chevrolet 🢒 2004 🢒 Tahoe - 2WD 🢒 Engine 🢒 Engine Controls - 4.8L, 5.3L, and 6.0L 🢒 Engine Controls Schematics

Figure 1:	Power, Ground, Serial Data and MIL Master Electrical Component List Powertrain Control Module Description Engine Data Sensors - Pressure, Temperature and VSS Engine Controls Schematic Icons Ignition Switch - ACC/RUN/START, ACC/RUN, and RUN/START Bus Bars IGN 0, TBC IGN 0, TBC ACCY, SEO ACCY, W/S WPR, RR WPR Fuses IGN 0, TBC IGN 0, TBC ACCY, SEO ACCY, W/S WPR, RR WPR Fuses IGN 1 Relay Bus Bar, SEO B2, B/U LP, BTSI, TRL B/U Fuses SBA, ETC/ECM, PCM 1 Fuses SBA, ETC/ECM, PCM 1 Fuses B+ Bus - 1 of 2 LH HID, RH HID, PCM B, CRANK, HORN, SIR Fuses RTD, RR WPR, EAP, SUNROOF Fuses Indicators G102, G103 SP205 - 2 of 2
Figure 2:	Engine Data Sensors - Pressure, Temperature and VSS Master Electrical Component List Powertrain Control Module Description Engine Data Sensors - HO2S Power, Ground, Serial Data and MIL Engine Controls Schematic Icons Vehicle Speed and Speedometer Vehicle Speed Signal and 4WD Low Signal Vehicle Speed Signal and 4WD Low Signal IGN 1 Relay Bus Bar, SEO B2, B/U LP, BTSI, TRL B/U Fuses SBA, ETC/ECM, PCM 1 Fuses SBA, ETC/ECM, PCM 1 Fuses G102, G103
Figure 3:	Engine Data Sensors - HO2S Master Electrical Component List Powertrain Control Module Description Engine Data Sensors - Electronic Throttle Controls - 1 of 2 Engine Data Sensors - Pressure, Temperature and VSS Engine Controls Schematic Icons Ignition Switch - ACC/RUN/START, ACC/RUN, and RUN/START Bus Bars G102, G103
Figure 4:	Engine Data Sensors - Electronic Throttle Controls - 1 of 2 Master Electrical Component List Powertrain Control Module Description Engine Data Sensors - Electronic Throttle Controls - 2 of 2 Engine Data Sensors - HO2S Engine Controls Schematic Icons IGN 1 Relay Bus Bar, SEO B2, B/U LP, BTSI, TRL B/U Fuses G104, G107
Figure 5:	Engine Data Sensors - Electronic Throttle Controls - 2 of 2 Master Electrical Component List Powertrain Control Module Description Ignition Controls - Ignition System Coil 1, 3, 5 and 7 Engine Data Sensors - Electronic Throttle Controls - 1 of 2 Engine Controls Schematic Icons Power, Cruise Control Switch, and Stop Lamp Feed
Figure 6:	Ignition Controls - Ignition System Coils 1, 3, 5 and 7 Master Electrical Component List Powertrain Control Module Description Ignition Controls - Ignition System Coils 2, 4, 6 and 8 Engine Data Sensors - Electronic Throttle Controls - 2 of 2 Engine Controls Schematic Icons IGN 1 Relay Bus Bar, SEO B2, B/U LP, BTSI, TRL B/U Fuses INJ 1, INJ 2 Fuses - All Except 8.1L G102, G103
Figure 7:	Ignition Controls - Ignition System Coils 2, 4, 6 and 8 Master Electrical Component List Powertrain Control Module Description Ignition Controls - Sensors Ignition Controls - Ignition System Coil 1, 3, 5 and 7 Engine Controls Schematic Icons IGN 1 Relay Bus Bar, SEO B2, B/U LP, BTSI, TRL B/U Fuses INJ 1, INJ 2 Fuses - All Except 8.1L G102, G103
Figure 8:	Ignition Controls - Sensors Master Electrical Component List Powertrain Control Module Description Fuel Controls - Fuel Pump Controls Ignition Controls - Ignition System Coils 2, 4, 6 and 8 Engine Controls Schematic Icons Gages
Figure 9:	Fuel Controls - Fuel Pump Controls Master Electrical Component List Powertrain Control Module Description Fuel Controls - Fuel Injectors Ignition Controls - Sensors Engine Controls Schematic Icons B+ Bus - 1 of 2 LH HID, RH HID, PCM B, CRANK, HORN, SIR Fuses IGN 1 Relay Bus Bar, SEO B2, B/U LP, BTSI, TRL B/U Fuses SBA, ETC/ECM, PCM 1 Fuses G104, G107 G104, G107 Fuel Gage
Figure 10:	Fuel Controls - Fuel Injectors Master Electrical Component List Powertrain Control Module Description Fuel Controls - EVAP Controls,Fuel Tank Pressure and Fuel Composition Fuel Controls - Fuel Pump Controls Engine Controls Schematic Icons IGN 1 Relay Bus Bar, SEO B2, B/U LP, BTSI, TRL B/U Fuses INJ 1, INJ 2 Fuses - All Except 8.1L
Figure 11:	Fuel Controls - EVAP Controls, Fuel Tank Pressure and Fuel Composition Master Electrical Component List Powertrain Control Module Description Controlled/Monitored Subsystem References - 1 of 2 Fuel Controls - Fuel Injectors Engine Controls Schematic Icons IGN 1 Relay Bus Bar, SEO B2, B/U LP, BTSI, TRL B/U Fuses SBA, ETC/ECM, PCM 1 Fuses B+ Bus - 1 of 2 4WS, RADIO, RADIO AMP Fuses Fuel Gage G104, G107
Figure 12:	Controlled/Monitored Subsystem References - 1 of 2 Master Electrical Component List Powertrain Control Module Description Controlled/Monitored Subsystem References - 2 of 2 Fuel Controls - EVAP Controls,Fuel Tank Pressure and Fuel Composition Engine Controls Schematic Icons A/C Compressor Controls A/C Compressor Controls A/C Compressor Controls A/C Compressor Controls A/C Compressor Controls A/C Compressor Controls A/C Compressor Controls A/C Compressor Controls Gages Power, Ground, Serial Data, and Wheel Speed Sensors Power, Ground, Serial Data, and Wheel Speed Sensors
Figure 13:	Controlled/Monitored Subsystem References - 2 of 2 Master Electrical Component List Powertrain Control Module Description Transmission Controls - A/T 4L60-E Controlled/Monitored Subsystem References - 1 of 2 Engine Controls Schematic Icons Power, Ground, Serial Data, and Wheel Speed Sensors Stop Lamp Switch and Traction Control Switch Indicators Engine Cooling Schematics Power, Ground, Serial Data and Encoder Motor Control Charging Starting Power, Ground, and Serial Data
Figure 14:	Transmission Controls - A/T - 4L60-E Master Electrical Component List Powertrain Control Module Description Transmission Controls - A/T 4L80-E Controlled/Monitored Subsystem References - 2 of 2 Engine Controls Schematic Icons Valve Controls and Brake Switch Switch Inputs Switch Inputs Tow/Haul Switch and PNP Switch Inputs
Figure 15:	Transmission Controls - A/T - 4L80-E Master Electrical Component List Powertrain Control Module Description Transmission Controls - A/T 4L60-E Engine Controls Schematic Icons Switch Inputs Switch Inputs Tow/Haul Switch and PNP Switch Inputs Vehicle Speed Signal and 4WD Low Signal Switch Inputs Valve Controls and Brake Switch